baber/WOPTO huggingface dataset:
Patent GB-1219543-A (GB)
Title: Antenna system
IPC: H01Q21/24
Filed: 1969-01-29
Abstract: 1,219,543. Aerials. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 29 Jan., 1969 [31 Jan., 1968; 15 Feb., 1968 (3); 18 Nov., 1968 (3)], No. 5040/69. Heading H4A. An aerial system has at least two elements, which respond to vertically and horizontally polarized waves respectively, and an active solid state circuitry, which has functions of impedance transformation or amplification or both, and which is located either at the junction of the elements, or half way along one of them. As described, an aerial system comprises vertical and horizontal elements 13, 14, Fig. 4, above a ground plane 11, and an active solid state circuit 16 including, for example, one or more transistors, connected at the junction of the said elements. One terminal of the circuit 16 is earthed, and the far end of the horizontal element 14 may be earthed through an impedance 15 to increase the operating bandwidth. The lower end, or driving point, 12, of the element 13 is connected to one terminal of a load 18 (e.g. a receiver) the other terminal of which is earthed. The active circuit enables matching to be improved and the directivity of the aerial system to be controlled. In other embodiments, the straight horizontal element may be replaced by a helical element, which may have a ferrite core (Figs. 6, 7, not shown). The active circuit may be located midway along an aerial element, instead of at a junction of aerial elements. An embodiment is described in which a single horizontal aerial element (14), Fig. 14 (not shown), has active circuits (16), (28) at each end, which are con. nected also to respective vertical aerial elements (13), (27). Various means of feeding an active circuit comprising a transistor are described using either two conductors forming a two-wire transmission line (Fig. 8, not shown), with which may be associated a third conductor (Fig. 9, not shown), or a coaxial cable (Figs. 10, 15, not shown, or Fig. 11). Thus, a transistor 16, Fig. 11, has bias resistors 25, 25<SP>1</SP> and a D.C. load 21, and its base is connected to a horizontal aerial element 14. The outer sheath of a coaxial cable 26 functions as a vertical aerial element and D.C. power is fed to the transistor 16 via its centre conductor and an intermediate sheath. A load 24 is connected to the lower end of the outer sheath of the cable 26.
Patent GB-1503012-A (GB)
Title: Plate heat exchangers
IPC: F28D9/00
Filed: 1975-02-06
Abstract: 1503012 Plate heat exchangers G A DE LEPELEIRE 6 Feb 1975 [6 Feb 1974] 5105/75 Heading F4S In a plate heat exchanger comprising parallel plates defining passageways S1 S2 for the heat exchanging fluids, each plate interspace S1 or S2 has at the ends thereof a plurality of openings (e.g. I1, I2, 02) forming fluid inlets and outlets which communicate respectively with subheaders CI2 and CO2 for the S2 interspaces and with corresponding subheaders for the S1 interspaces (only the corresponding inlet subheader CI1 is visible in the drawings), the subheaders communicating with main headers CCI1 and CCO1 for one fluid and with main headers CCI2 and CCO2 for the other fluid, all the headers being generally prismatic in form and each providing, in the general direction of fluid flow thereinto, a flow area of generally rectangular cross-section. The subheaders are triangular in shape at right angles to the direction of fluid flow therethrough. The plate interspaces may be defined by separate plates sealed together at their longitudinal edge portions (Figs. 4, 5, 6a and 6b), or by folds in a sinuously folded plate (Fig. 8). The plates may be formed by pressing with a pattern of projections and indentations (Figs. 1 and 2).
Patent GB-1032648-A (GB)
Title: Method for producing polyesters
IPC: C08L75/06
Filed: 1964-02-06
Abstract: Polyesters are made by polymerizing d -valerolactone in the presence of an organic compound having more than one functional group selected from hydroxyl, alcoholate and amino groups and either (a) reacting those polymers with terminal hydroxyl or alcoholate groups with a monofunctional acylating agent, or (b) reacting those polymers with terminal hydroxyl groups with a mono-isocyanate. Specified are organic initiators-ethylene glycol, the sodium alcoholate of tetramethylene glycol, ethylene diamine, hexamethylene diamine and ethanlamine; acylating agents-acetic anhydride, acetyl chloride, benzoyl chloride; mono-isocyanates-phenyl isocyanate.  The polyesters are used as plasticizing agents for polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate and copolymers of vinyl chloride and vinylidene chloride.
Patent GB-1026446-A (GB)
Title: Memory system
IPC: G11C7/02
Filed: 1964-02-06
Abstract: 1,026,446. Circuits employing bi-stable magnetic elements. RADIO CORPORATION OF AMERICA. Feb. 6, 1964 [Feb. 20, 1963], No. 5157/64. Heading H3B. A memory system using magnetic storage elements 11 comprises a storage matrix 10 and a similar noise-cancelling matrix 12, a single magnetic storage element in each of the matrices being selectively addressed for writing by coincidently energizing an X read-write driver X 1 -X 4  and a Y read-write driver Y 1 -Y 4  with switches Sx 1 -Sx 4  open and switches S<SP>1</SP>x 1 - S<SP>1</SP>x 4  closed, and a single storage element in the storage matrix alone being addressed for reading by similar coincident energization of an X and a Y read-write driver but with switches Sx 1 -Sx 4  now closed, the system including a sense conductor s which is threaded in a noise-cancelling manner through all the storage elements of both matrices and is connected to a sense amplifier 20. All the storage elements 11 of both matrices are additionally threaded by an inhibit conductor d which prevents a " one " from being written into the matrices when energized. Operation of the system is shown in Figs. 5a to 5e. A stored binary digit is read by closing switches Sx and applying coincident positive pulses 60, 62 from the readwrite drivers to a selected row and column. To clear the information also stored in the noise-cancelling matrix 12 switches Sx are opened and switches Six closed while the pulses 60, 62 are still present. To write in both of the matrices, switch S<SP>1</SP>x is closed and coincident negative pulses 34, 36 are applied to a selected row and column. If a " zero " is to be written then core switching is prevented by an inhibit pulse 42. During the read phase of operation the sense amplifier 20 is activated by a strobe pulse from 22, Fig. 5i (not shown). A word store is made up of several digit planes each comprising a storage matrix and a noisecancelling matrix, Fig. 6 (not shown).
Patent GB-869341-A (GB)
Title: Improvements in striker mechanisms for igniters
Inventor: SCHERMULY ALFRED JAMES
IPC: F42C7/12
Filed: 1959-02-16
Abstract: 869,341. Igniters for pyrotechnic devices. SCHERMULY PISTOL ROCKET APPARATUS Ltd. Feb. 2, 1960 [Feb. 16, 1959], No. 5244/59. Class 9(2). An igniter which may be used in a flare has a body 1 comprising a cylindrical part 2 from which extends a tube 4 of reduced diameter housing a sleeve 8 surrounding a striker 16 aligned with a percussion cap 12. Rotatably mounted on the body 1 is a casing 20 closed by a plug 22, which is counterbored to receive an apertured cap 13 screwed on the sleeve 8. Casing 20 carries inwardly projecting cams 26 supporting radial arms 18, projecting from the striker through slots in the sleeve 8 and tube 4. During storage, the arms abut stops 27 at the ends of the cams, so that the spring 19 surrounding the striker is only lightly stressed. A split pin (not shown) extending through the casing 20 and the part 4 may lock the igniter in the safe position. To use the igniter, the pin is withdrawn and the casing 20 rotated. The arms 18 ride along the cams causing the striker to move until its shank enters a recess 29 in the plug 22. The spring 19 is stressed by the withdrawal of the striker and, when the arms 18 ride over the cam edges, forces the striker against the cap 12.
Patent GB-1223881-A (GB)
Title: Method of synthesis of 5-benzyl pyrimidine derivatives
IPC: C07D239/48
Filed: 1968-02-01
Abstract: 1,223,881. 2,4 - Diamino - 5 - (substituted benzyl)-pyrimidines. WELLCOME FOUNDATION Ltd. 1 Feb., 1968 [2 Feb., 1967], No. 5246/68. Heading C2C. [Also in Division A5] Compounds of formula wherein Z is H or C 1-4  alkyl, R<SP>2</SP>, R<SP>3</SP> are each halogen, or C 1-4  alkyl or alkoxy; and R<SP>1</SP> is C 1-10  alkyl, C 1-4  haloalkyl, an unsaturated C 2-4  aliphatic hydrocarbon radical, or benzyl possibly substituted by C 1-4  alkyl or alkoxy groups, are prepared by etherification of the corrsponding starting material, where R<SP>1</SP> = H, with R<SP>1</SP>Q (Q being a reactive atom or group) under basic conditions.
Patent GB-234886-A (GB)
Title: Improvements in and relating to oil heating apparatus
IPC: C10G33/06
Filed: 1924-02-29
Abstract: 234,886. Empson, A. W. Feb. 29, 1924. Oils, purifying.-Oil to be purified is first subiected to intimate contact with hot water, and then to centrifugal action to separate water and other impurities. Water is supplied through a pipe 17 and three-way cock 15 to a tank 1 fitted with electric heaters 4, and oil is sprayed throush perforated pipes 5 below the water level, passes upwards, and eventually leaves the tank by a pipe 18, three-way cock 20, and pipe 22 leading to the separator. The oil spray pipes are connected with a manifold 7, and their free ends are fitted with detachable caps or plugs to facilitate cleaning. At starting, water is supplied until the level in the tank is above the normal 2 so that sufficient hot water may be pumped through pipes 19 and 22 to the separator in,order to heat the latter, and to provide the necessary water seal. Water may be returned periodically from the separator to the pipe 17. Specification 224,935 is referred to.
Patent GB-696508-A (GB)
Title: Improvements in or relating to measuring tapes
IPC: G01B3/10
Filed: 1951-03-05
Abstract: 696,508. Measuring-tapes. RAYNOR, E., and CLARK, H. P. June 26, 1951 [March 5, 1951], No. 5275/51. Class 106 (ii). An anchoring attachment bolted to the end 6 of a tape 7 comprises a bent-over metal strip 1 having a penetrating spike 12 which is screwthreaded to receive a covering sleeve 13, and a flat strip 10 pointed at each end and having its inner abutment surface roughened by pressedup projections 11.
Patent GB-554212-A (GB)
Title: Improvements connected with dynamometer testing apparatus
IPC: G01L3/16
Filed: 1942-04-21
Abstract: 554,212. Dynamometers. ASHWORTH, ROSS & CO., Ltd., and MILLS, R. A. April 21, 1942, No. 5288. [Class 106 (ii)] The torque arm α is rigidly connected to a member b disposed equally on either side of and above and below the vertical and horizontal centrelines respectively which pass through the fulcrum c<SP>1</SP> of a lever c suspended from the connecting rod e of the load-indicating mechanism, the member b having connections adjacent its ends to points C<SP>3 </SP>in the lever at equal distances on either side of the fulcrum c<SP>1</SP> whereby a downward pull is given to rod e irrespective of the direction of rotation of the dynamometer. The fulcrum c<SP>1</SP> is provided by a spindle rotatable in ball bearings in a pedestal p. The connection of lever c to the rod e is by knife-edge c<SP>2</SP> and link-bearing d. The plate b has slots b<SP>2</SP> to accommodate link-bearing connections to knifeedges c<SP>3</SP> on the lever c. The bearing links f incorporate springs to prevent chattering. A dashpot h is provided.
Patent GB-782855-A (GB)
Title: Improvements in or relating to shelf assemblies
IPC: A47B87/02
Filed: 1955-02-22
Abstract: 782,855 Multi-deck trays. JAMES, D. M. Jan. 11, 1956 [Feb. 22, 1955], No. 5300/55. Class 52(3) Trays 1 are detachably connected in superposed selection by flat resilient struts 3 upwardly hooked at their lower ends to engage the lower tray rim 2, a transverse bar 5 resting on the rim top, and the upper ends having a shoulder 7 and hook 8 which when the strut is sprung inwardly, form a seating for the rim of the upper tray and engage with its bottom grid. As shown the struts may consist of wires 4 in downwardly splayed arrangement.
Patent GB-865134-A (GB)
Title: Method of recovering oil
Inventor: MARTIN JAMES WELLFORD
IPC: E21B43/16
Filed: 1959-02-16
Abstract: 865,134. Oil wells. OIL RECOVERY CORPORATION. Feb. 16, 1959, No. 5304/59. Class 85. Oil is recovered from an oil field having at least one input well and one output well, by passing through the oil-bearing structure, under pressure, from the input to the output well, a light hydrocarbon solution of carbon dioxide, the hydrocarbon having a boiling point below 350‹ C. and the CO 2  content being not less than 20% and not more than 100% of the amount which will remain in solution in the pressure and temperatures conditions of the oil-bearing structure, the hydrocarbon remaining liquid in these conditions. The light hydrocarbon is any suitable low boiling fraction of petroleum, e.g., paraffins, naphthenes, aromatics &c. The CO 2  solution reduces the surface tension of the oil in the sand, and the flow to the output well is facilitated by an injection of carbonated water followed by a water flood or gas drive. The hydrocarbon solvent separates from the recovered crude oil and may be recycled. Specification 669,216 is referred to.
Patent GB-320012-A (GB)
Title: Improvements in or relating to reels or swifts for winding textile yarns
IPC: B65H49/30
Filed: 1929-02-18
Abstract: 320,012. Haddan, R., (Gegauf's S÷hne, F.). Feb. 18, 1929. Skein-holders and swifts.-In a reel or skein-holder for supporting yarns, the yarn-bearing surfaces of the wooden cross-bars 2, Fig. 2, extending transversely of the arms 1 are protected by self-fixing members 4 of rustproof steel, the longitudinal edges 5 being bent inwardly to engage grooves 6, Fig. 3. One or both ends 8 may be formed to overlap the end 7 of the cross-bar 2.
Patent GB-1102351-A (GB)
Title: Process for improving the tinctorial and antistatic properties of shaped structures
IPC: D06M15/37
Filed: 1965-02-08
Abstract: 1,102,351. Treating synthetic fibres. FARBWERKE HOECHST A.G. 8 Feb., 1965 [7 Feb., 1964], No. 5475/65. Heading B5B. [Also in Division D1] The tinctorial and antistatic properties of shaped structures of synthetic linear high molecular weight polymer e.g. filaments, films etc. are improved by treating them with an aqueous solution, dispersion or emulsion of an organic compound (A) which is stable with respect to water at temperatures up to 40‹ C., containing in the molecule at least 40% by weight, preferably 60-95% by weight, of polyalkyleneglycol ether radicals and at least two reactive atoms or radicals selected from the group consisting of active hydrogen atoms linked to oxygen, sulphur or basic nitrogen, radicals capable of reacting with such active hydrogen atoms, and precursors of said active hydrogen atoms or of radicals capable of reacting therewith, stretching the shaped structures if not already stretched drying the structures and then shrinking them at an elevated temperature. The shaped structure may be a single filament or a tow. The material of the filament or film may be a polyester such as polyethylene terephthalate, a polyolefine such as polyethylene or polypropylene, or a polyamine. The precursors of the reactive functions in the compounds (A) may be amine salts, chlorohydrin radicals or masked isocyanate or vinyl sulphonic groups. The compound (A). may be crosslinked during or after the said shrinking at elevated temperature. The crosslinking may be carried out by intramolecular reaction of the compound (A) or by reaction with a compound (B) which contains, per molecule, at least two groups which will react with the reactive atoms or radicals or the precursors thereof of compound (A). The compound (B) may be applied to the filaments etc. at the same time as compound (A) or after the application of compound (A). The crosslinking reaction may be carried out in the presence of a catalyst. It may be carried out after the shrinking step. Compounds containing active hydrogen atoms or their precursors may be primary or secondary amino groups or their salts with inorganic or organic acids, compounds containing alcoholic or phenolic hydroxyl groups, mercapto groups or carboxyl groups. Compounds capable of reacting with active hydrogen atoms may contain epoxy groups, vinyl-sulphone groups, acroyl groups, ethylene-imide groups, and N-methylol groups. The compounds may be alkylating agents containing at least two reactive halogen atoms or sulphuric or sulphonic acid ester groups.
Patent GB-1421609-A (GB)
Title: Conveyors
IPC: A01D87/12
Filed: 1973-02-05
Abstract: 1421609 Conveying and unloading bales W V LENERICH 5 Feb 1973 [3 Feb 1972] 5553/73 Heading B8A Bales are unloaded from a lorry by an endless conveyer belt 3 which is fed by means of shoots 5 which are pivotally mounted on the frame of the conveyer. The latter includes framework 2 which encloses the bales and corresponds in cross-section to their shape.
Patent GB-195242-A (GB)
Title: Improvements connected with trousers presses
IPC: A47G25/72
Filed: 1922-02-25
Abstract: 195,242. Everitt, R. W. Feb. 25, 1922. Trouser presses.- An ordinary trouser press is mounted at its ends or sides upon pivoted trunnions in vertical supports, and combined with the press, as one structure, is either a table, or another trouser press, or a box, or other useful article. Means are provided to fix the press rigidly in a horizental position. Two boards a, c, Fig. 2, are rigidly distanced apart by transverse strips d, the board a forming the base of the press, and the board c a table-top, box-bottom, or boxsupport. The board a carries the usual bolts f, and a top press-board g. Projecting from the ends of the board a are trunnions 2 provided by the ends of a rod j, Fig. 4. The trunnions engage holes in uprights n, Fig. 2, on bases n<2> suitably stayed together. Either the press or the table or box can be turned uppermost. A wedgelike device r<2>, carried at the end cf a spring-arm r<3> on the upright n, can be sprung into position to hold the press firm. Detachable longitudinal rods u constitute boot racks.
Patent GB-1364323-A (GB)
Title: Overload safety devices for cranes
IPC: B66C23/90
Filed: 1972-02-07
Abstract: 1364323 Crane safety devices LEO GOTTWALD KG 7 Feb 1972 5632/71 Heading B8B A crane overload safety device 11 is attached by a bracket 13 to a crane jib 12. A number of cams 21, each corresponding to a particular length of jib 12, is mounted on a shaft 16. A damped pendulum 24 maintains the cams 21 in position corresponding to the vertical position of the pendulum 24, automatically compensating for any slope of a vehicle on which the jib 12 is mounted. A shaft 15 carries arms 42 associated in pairs with the cams 21 and carrying either a lamp, e.g. 43 or a photo-cell, e.g. 44. The shaft 15 is counterbalanced and may be rotated by a cable 49 attached to a wheel 48, passing over a pulley 51 and connected to a lever 56 of a strain gauge 52. The strain gauge comprises a tension rod 59 attached to the lower side of the jib 12 and prestressed by an amount equal to the maximum load allowable, the mountings 55 releasing the rod 59 should it be no longer stressed.  Each cam 21 is arranged to have its four quadrants corresponding to a particular arrangement of the crane, the particular quadrant being selected by operation of a motor 38. Movement of the arms 42 cuts off the light passing between, e.g. lamp 43 and photo-cell 44, when the cam 21 intervenes and this results in preventing operation of the crane to increase the load further. A preliminary warning is given by, e.g. lamp 43a and photo-cell 44a. A controller pendulum 27 pivoted on a pin 26 above the shaft 16 ensures, through a photo-cell and light source 25, 28 that the device operates only when the two pendulums 24, 27 are in line. Should the cable 49 break a return spring 54 moves the arms 42 to a safety light trap 62 which cuts the light beam between the arms 42. The various lamps 43 &c. may be replaced by light supplied from a central source by way of optical fibre light conductors. Other beam emitters and receivers, such as ultrasonic beam emitters and receivers (not shown) may replace the light sources and photo-cells.
Patent GB-1049840-A (GB)
Title: ª-(halogenated methylenyl)-3-indolyl acetic acids and their derivatives
IPC: C07D209/26
Filed: 1963-08-26
Abstract: Novel compounds of formula <FORM:1049840/C2/1> in which R1 is a phenyl or 5- or 6-membered heteroaromatic monocyclic radical that is unsubstituted or has from 1-3 substituents; R2 is a hydrogen atom, or a C1- 5 alkyl, aryl, or aralkyl radical which may be substituted by one or more alkoxy, halo, amino, substituted amino or nitro radicals, or is a C2- 5 alkenyl, cycloaliphatic or alkanyl radical; R3 is a halogenated methylene radical; R4 is hydroxy, amino, substituted amino, C1- 5 alkoxy, aralkoxy or -OM radical, M being a cation; R5 is a hydrogen or halogen atom, or a C1- 5 alkyl C1- 5 alkoxy, haloalkyl, nitro, amino, substituted amino, aryl, aryloxy, hydroxy, mercapto, sulphamoyl, sulphoxide, carboxy, carboalkoxy, cyano, aminomethyl, alkyl-substituted aminomethyl, dialkylsulphamoyl, or benzylmercapto radical; and R6 is a hydrogen atom or a C1- 5 alkyl or C2- 5 alkenyl radical; and the anhydride derivatives of the acids; are prepared by treating an indole of formula <FORM:1049840/C2/2> in which R1 is an alkyl or aralkyl group with a halogenated triphenyl phosphorane of formula (C6H5)3P = R13, and, if desired, hydrolysing the ester formed (R4 is alkoxy or aralkoxy) to the corresponding acid (R4 is hydroxy), which may be converted to a symmetrical or mixed anhydride which is reacted with ammonia, a primary or secondary amine, or an alkanol or aralkanol in the presence of a non-hydroxylic base to give the corresponding amide, substituted amide or ester of Formula (I) (R4 is amino, substituted amino, alkoxy or aralkoxy), or which may be esterified with an alkanol or aralkanol to produce the corresponding ester.  The 3-keto ester indole of Formula (II) may be prepared by reacting an oxalyl halide with the N-1 unsubstituted indole to give a 3-indole glyoxalyl halide which is then reacted with an alkanol or aralkanol to yield the alkyl or aralkyl 3-indoleglyoxalate the aralklyation or heteroaralkylation of which gives the N-1 aralkylated or hetero-aralkylated 3-keto ester indole of Formula (II).  The foregoing steps may be reversed, i.e. the indole may first be aralkylated in the N-1 position, followed by introduction of the 3-keto ester residue.  Therapeutic compositions having anti-inflammatory and antipyretic activity, which may be administered, e.g. orally, contain as active ingredients compounds of Formula (I) above.
Patent GB-657802-A (GB)
Title: Improvements in or relating to flashlamps
IPC: F21K5/08
Filed: 1949-03-02
Abstract: 657,802. Pivoted-blade cutters. PHILIPS ELECTRICAL, Ltd. March 2, 1949, No. 5716. Convention date, March 4, 1948. [Class 31 (i)] [Also in Group XXI] Incisions at intervals of less than 100 Á are made in a metal foil of thickness less than 100 Á by feeding it to a cutting head 14 carrying three knives 15 and mounted on a table 12. By adjusting the feed the desired width of strip can be cut as the head 14 is revolved. The length of the incisions may be varied by using knives of different lengths. Thus a cutter head carrying four knives of stepped lengths, may be used. The knives may be set at varying angles to distort the cut strips and thus increase the intervening distances. The incisions may be made in pairs alternately beginning at opposite edges of the foil, by rectilinearly movable knives. In another pattern of cut some incisions start at the edges while intermediate incisions do not extend to the edges of the foil. The foil may be oval or circular in shape with radial incisions. The cut foil is inserted in a photographic flash lamp and attached to one of the pole wires which are connected by a filament carrying an igniter.